ccording to the characteristics and structures of the supervision and control systems available in urban rail transit,decision-making basis is provided by means of intelligent Fault Diagnosis for the maintenance and repair of station equipment.

According to the goal in the Diagnose Expert System for railway station signal equipment,it was adopted object-orient structural knowledge representation in the design and implementation of knowledge database for Diagnose Expert System.

Application of video-endoscope in the nondestructive detection of power plant equipments;

Research on short-term maintenance risk decision model of power plant equipment;

Research on fault risk evaluation method for power plant equipment;

This paper described the applications of some surface engineering technologies, such as overlaying, thermal spraying, spray-welding, self-propagating, surface heat-treating, binding, decoration and so on for power station equipment.

It can prolong greatly the service life of the equipment, and improve the reliability of the key components and economical efficiency to use ceramic coating material on power station equipment.